The meaning of SPRUCE BEETLE is a beetle that attacks the spruce; especially : any of several bark beetles of the genus Dendroctonus whose larvae feed beneath the bark and often cause severe damage.
The role of lignin as a defence against the spruce bark beetle Dendroctonus micans: effect on larvae and adults. Oeco- logia (Berl.) 85: 257Ð265.Wainhouse D, Cross DJ, Howell RS (1990) The role of lignin as a defence against the spruce bark beetle Dendroctonus micans: effect on ...
Analysis of the temperature dependent development of the spruce bark beetle Ips typographus (L.) (Col., Scolytidae). J. Appl. Entomol. 122, 185-191.Wermelinger, B., Seifert, M., 1998. Analysis of the temperature dependent development of the spruce bark beetle Ips typogra- phus (L.) (...
The Eurasian spruce bark beetle,Ips typographus(L.) (Coleoptera: Curculionidae: Scolytinae), is the most destructive forest pest of Norway spruce,Picea abies(L.) Karst. (Pinales: Pinaceae). It is one of the few bark beetle species worldwide that can undergo eruptive population outbreaks and l...
The European spruce bark beetle (Ips typographus [L.]) is one of the most damaging pest insects of European spruce forests. A crucial measure in pest control is the removal of infested trees before the beetles leave the bark, which generally happens before the end of June. However, stressed...
Relative population levels of the spruce bark beetle, Ips typographus (L.) (Coleoptera, Scolytidae) and associated insects were estimated in 12 spruce stands in central Sweden. Spruce bolts and window traps baited with semiochemicals were used for the monitoring. Six stands were unmanaged and had ...
Intraspecific competition among larvae can greatly increase their mortality, and even decrease the fitness of subsequent beetle generations (Anderbrant et al., 1985, Raffa, 2001). Consequently, an artificially reduced infestation density could theoretically lead to greater success in reproduction and ...
The spruce beetle, Dendroctonus rufipennis Kirby (Coleoptera: Curculionidae, Scolytinae), is a native disturbance agent of spruce (Picea spp.) forests in North America. Based on field observations, it is widely accepted that new adults must overwinter regardless of the length of the life cycle....
Insects have mutualistic symbioses with a variety of microorganisms. However, the chemical signals that maintain these insect−microbe relationships are poorly known compared to those from insect−plant symbioses. The spruce bark beetle, Ips typograp
From birch logs, we sampled 1 m2 of bark per log in a similar manner. After sifting, the resulting wood litter was placed in plastic bags and studied later indoors, by spreading the litter in small lots on a white tray and collecting all beetle adults and larvae. We identified extracted ...